OpenTechnical

OT-2026-000020530

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, pulsed blow-off before set-down

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000020530) never changes.

Identity and time

Publication numberOT-2026-000020530 · never reused
Internal UUID01a0ae6f-437c-7a4f-876e-97f3d78856ce · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020530
StatusPUBLIC

Content hashes

Canonical texta8e3b09db8eeebd63222c42f07fb3f10826c751621ed3388496d492880ed12b3
Markdown4797db2a2d1849b72ce7072d03dcbae4b35ba3cd4d7b2354a51660deea18a077
PDF
Publication pagece5653d3abdf2539e2018ef783b322453c3a0a9f7adf5f3d7d83f6aaaab7d9a3
Manifest1a060cddd2390679e8f474787b467535581f9197b6a648d3bf40ec19a37ea5b2

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureGlOrX3/6mKtFycV/9S8ahpq9L82VZHhjY50DuJng99mQRnS7TWwPdPWvU3Zk/wyAa307MrXPfv6ymVBmILYEBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:00:30.548930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020530
observed ce5653d3abdf2539e2018ef783b32245...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:30.525817ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020530/manifest.json
observed 1a060cddd2390679e8f474787b467535...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:30.505079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020530/publication.md
observed 4797db2a2d1849b72ce7072d03dcbae4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:30.485263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020530/publication.txt
observed a8e3b09db8eeebd63222c42f07fb3f10...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:33.146030ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020530
observed ce5653d3abdf2539e2018ef783b32245...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:33.127602ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020530/manifest.json
observed 1a060cddd2390679e8f474787b467535...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:33.109118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020530/publication.md
observed 4797db2a2d1849b72ce7072d03dcbae4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:33.091323ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020530/publication.txt
observed a8e3b09db8eeebd63222c42f07fb3f10...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.